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NaCl和PEG胁迫对金露梅种子萌发及幼苗的影响()

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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:: 第29卷
期数:: 2014年04期

页码:: 123-126

栏目:

出版日期:: 2014-07-30

文章信息/Info

Title:: Effects of NaCl and PEG Stress on Seed Germination and Seedling Growth of Potentilla fruticosa

文章编号:: 1001-7461(2014)04-0123-04

作者:: 何佳亮; 董开茂; 郑健^*; 冷平生; （北京农学院园林学院，北京 102206）

Author(s):: HE Jia-liang; DONG Kai-mao; ZHENG Jian^*; LENG Ping-sheng; (College of Landscape Architecture, Beijing University of Agriculture, Beijing 102206, China)

关键词:: ; NaCl; PEG; 金露梅; 种子萌发; 幼苗

Keywords:: ; NaCl; PEG; Potentilla fruticosa; seed germination; seedling

分类号:: S722.36

DOI:: doi:10.3969/j.issn.1001-7461.2014.04.22

文献标志码:: A

摘要:: 为探讨NaCl、PEG处理对金露梅种子萌发和幼苗的影响，分别以0、40、80、120、160、200 mmol·L^-1浓度的NaCl溶液和0、100、125、150 、175、200、225、250、300 g·L^-1浓度的PEG溶液处理金露梅种子。结果表明，高于120 mmol·L^-1 NaCl溶液处理，对金露梅种子的萌发有明显抑制作用；40 mmol·L^-1的NaCl溶液抑制了金露梅幼苗生长。100～175 g·L^-1的PEG溶液处理金露梅种子，能促进种子萌发和幼苗胚根生长，而高于175 g·L^-1的PEG溶液处理，则对金露梅种子的萌发和幼苗生长具有明显的抑制作用。

Abstract:: Effects of salt and drought stress on the germination of Potentilla fruticosa seeds and the growth of the seedlings were examined. The NaCl concentrations were designed as 0, 40, 80, 120, 160 and 200 mmol·L^-1, the PEG concentrations were 0, 100, 125, 150, 175, 200, 220, 250 and 300 g·L^-1, respectively, and distilled water was used as the control. The results showed the seed germination was significantly inhibited by NaCl solution with the concentration of 120 mmol·L^-1 or higher, and the seedling growth was inhibited at 40 mmol·L^-1 or higher. PEG solution with low concentrations (100-175 g·L^-1) could promote seed germination and the growth of seedlings radicle, however, they were significantly inhibited at high concentrations (above 175 g·L^-1).

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备注/Memo

备注/Memo:: 收稿日期：2013-10-23修回日期：2014-01-09
基金项目：国家林木（含竹藤花卉）种质资源平台（2012年度）；北京市教委面上项目（KM201310020013）。
作者简介：何佳亮，男，硕士研究生，研究方向：生态恢复。E-mail：1254807154@qq.com
*通信作者：郑健，男，副教授，硕士生导师，研究方向：园林植物遗传资源与育种研究。E-mail：zhengjian@bac.edu.cn

《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

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